具有 prescribed isoperimetric ratio 的 Willmore flow
The Willmore flow with prescribed isoperimetric ratio
AI总结:
提出保持 isoperimetric ratio 的非局部 L^2-梯度流研究 Willmore energy,证明低能球形初始数据下长时间存在且收敛于 Helfrich immersion,避免了局部约束流的有限时间奇点。
摘要:
我们引入了浸入面 Willmore energy 的非局部 L^2-梯度流,它保持 isoperimetric ratio。对于能量低于 explicit threshold 的球形初始数据,我们证明了长时间存在性并收敛于 Helfrich immersion。这与局部约束流形成鲜明对比,后者会出现有限时间奇点。
英文摘要:
We introduce a non-local $L^2$-gradient flow for the Willmore energy of immersed surfaces which preserves the isoperimetric ratio. For spherical initial data with energy below an explicit threshold, we show long-time existence and convergence to a Helfrich immersion. This is in sharp contrast to the locally constrained flow, where finite time singularities occur.
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